Self-heating soldering-tool.



PATENTED JAN. 6, 1903.

G. J. THRNGREN. SELF HEATING SOLDERING TOOL.

APPLICATION FILED MAR. 10v 1902.

2 SHEETS--SHEET l.

N0 MODEL.

f//l//lllllll `c. J. THORNGRBN. .SELF HEATING SOLDERING T001..

APPLICATION FILED MAR. 10, 1902.

PATENTED JAN. 6, 1903.

N0 MODEL` 2 SHEIITS-SHIZET 2.

20 fz w 2f ff f mv" J7 "y" Z1 2z o I: if l .Z6 i7 V Z7 a la 7 /j 6 3 EZ n 16 In Q CJPT/JOr/zfgrerz) NTTED STATES PATENT OFFICE.

CHARLES J. THORNGREN, OF NEW BRITAIN, CONNECTICUT.

SELF-HEATING SOLDERING-TOOL.

SPECIFICATION forming part of Letters Patent N o. 718,034, dated January 6, 1903. Application filed March 10, 1902. Serial No. 97,585. (No model.)

To ot'wwm it may concern:

Be it knownth'at I, CHARLES J.-THORNGREN, a citizen QfthefUnit'ed States, residing at New Britain, in the county of Hartford and State of Connecticut, have invented certain new and useful Improvements in Self-HeatingSoldering-Tools; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and usethe same.

This invention relates to improvements in self-heating soldering-tools of that kind employingas fuel a hydrocarbon, such as gaso lene, which is conined in a storage-reservoir formingV the handle of the tool and is. conducted therefrom to a burner, the Iiame from which is projected Vupon the soldering-iron, which forms the point of the shank of the tool.

The object of the invention is to provide a tool of this character in which provision is made for setting the burner and solderingpoint either in the plane of the handle or at an angle thereto, to provide means for efficiently regulating the draft,to provide a resinheating attachment which is applicable for use in place of the soldering-point whenever it is desired to employ melted resin in soldering-work, and finally to provide a tool which is comparatively simple of construction, inexpensive of production, and combines in a `single instrument a torch adapted for heating various tools, a soldering-iron, and a resin melting and applying device.

With this and other objectsin View, which Will readily appear as the nature of the invention is better understood, the same consists in certain novel features of construction and combination and arrangement of parts, which will be hereinafter fully described, deined in the appended claims, and illustrated in the accompanying drawings, in which- Figure l is a side elevation of a self-heating tool embodying my invention. Fig. 2 is a longitudinal section showing the application of the resin melting and supplying device to the burner in place of the Vsolderingpoint. Fig. 3 is a side elevation of the resin melting and applying device. Fig. 4 is a longitudinal section of the soldering-point. Fig.

5 is a cross-section through the burner o'n line 5 5 of Fig. 2. Figs. 6 and 7 are part-sectional and part side elevational views illustrating a modification, in which the soldering-point is integral with the burner, and also illustrating the manner of setting the point in the plane of the handle or at an angle thereto. Fig. 8 is a side elevation of the combined burner and point shown in Figs. 6 and 7.

Referring now more particularly to the dra'wings,tl1e numeral l represents the liquidfuel reservoir which forms the handle of the toolwhich reservoir and handle comprise a tube 2, closed at its outer end bya screw-cap 3 and at its inner end by a screw-cap 4E and encompassed between said caps by a shield or covering 5 of some suitable material of suiiciexitly low conductivity of heat to protect the hand of the user from the heat transmitted from the burner. As shown, the cap 3 engages a washer bearing against one end of the covering 5, while the cap l is provided with a flange 7, bearing against the opposite end of the covering, whereby said covering is clamped against displacement.

The cap 4 is formed upon the outer or rear end of a valve-casing S, which is provided at its opposite or forward end with a socket 9, carrying a set-screw 10, and has a passage 11, connecting said cap and socket. This passage is controlled by a needle-valve 12, which is threaded to turn within a sleeve 13 and is provided at its outer end with a milled head 14, said sleeve and valve being arranged at a rearward angle of inclination, so as to adapt the head 14 to be conveniently manipulated by the thumb and forenger oi the hand of the operator which grasps the handle l.

The socket 9 is formed with air-inlets 15 and is adapted to receive and hold a Bunsenburner tube 1G, which is provided witha pluralityof air-ports 17, whereby air is commingled with the hydrocarbon gas or vapor in the usual way. One end of this burnertube forms a tting 18, adapted for insertion" into the socket 9, and from the side of the tube projects a similar iitting 19, which extends at right angles to said fittinglS. As shown in Figs. l, 2,6, and 7, the ttinglS When inserted in the socket 9 holds the burner in a position coaxially with the handle 1, While the itting 19 when inserted holds the burner in a position at right angles to the handle, by means of which the burner may IOC be adjusted for setting the soldering-point 2O in the most convenient position for use, thereby enabling the tool to be operated with better advantage in inconvenient situations. The air-ports 17 may be formed in both the body of the Tube and fittings, as shown in Figs. 1 and 2, or solely in said fittings, as shown in Figs. 6 and 7. A cup or cap 21 is adapted to be applied on either fitting 18 or 19 and is provided with air-ports 22, which are designed to register with the air-ports 17 in said fittings. This cup or cap carries a set-screw 22 for securing it in adjusted position on the tting and serves the function of a valve regulating the supply of air over a prescribed amount to the burner 16. It will of course be understood that the cap 21 is applied to the fitting 19 when the tting 18 is connected to the socket 9 and to the fitting 18 when the fitting 19 is connected to said socket 9. Further, said cap 21 is designed to serve the purpose of a starting-pan in preliminarily heating the device to start the generation of gas, as hereinafter described. At the forward end of the burner a socket 23 is formed to receive the point 2O or other form of tool to be heated, and this socket has a set-screw 24 to secure the tool in position. The tool or point may, however, be formed integral with the burner, as shown in Figs. 6 and 7, or otherwise suitably fixed thereto.

The construction shown in Figs. 1 and 2 A adapts the device for receiving and heating 'filling-opening 26, closed by a cap 27.

tools of different kinds and is preferred for that reason. I have provided for use in connection with this embodiment of the invention a resin inciting and applying device, which is a handy article to employ whenever resin is to be applied to a joint prior to soldering. This device comprises a tube or reservoir 25, which is adapted to contain the resin, which is inserted therein through a The outer end of this reservoir is formed to provide a spreader-point 28, which has a feedpassage 29 for the outiiow of the melted resin,

the discharge of which is regulated by a valve 30. The inner end of the reservoir is adapted to fit within the socket 23, as shown in Fig. 2, and is provided with an in wardly-projecting partition 31, forming a short flame-chamber and adapted to transmit the heat to the resin to melt the same, as will be readily undei-stood.

In starting the device the reservoir 1 is filled nearly full of gasolene and closed by applying the cap 3, after which the cup 21 is removed from the fitting and lled up to the line of the apertures therein with alcohol or gasolene, which is ignited and the flame therefrom allowed to play upon the valve-casing 8. When said casing 8 has become sufficiently heated, the valve 12 is opened to allow the hydrocarbon to feed into the passage 11 and to be converted by the heat into vapor, which commingles with the entering air and is ignited in the burner 16. The cap 21 is then applied to the proper fitting to regulate the supply of air. The tool will then continue to generate gas from the hydrocarbon fed from the reservoir 1, the flow or feed of which is induced by the suction created by the draft consequent upon the action of the burner.

From the foregoing description, taken in connection with the accompanying drawings, the construction, operation, and advantages of my improved self-heating soldering-tool will be readily apparent without requiring a more extended explanation.

Various changes in the form, proportion, and the minor details of construction may be resorted to without departing from the principle or sacrificing any of the advantages of this invention.

Having thus described my invention, what is claimed as new, and desired to be secured by Letters Patent, is-

1. In a vapor-burning appliance of the character set forth, the combination with a handle forming a reservoir, of a burner comprising a body portion having fittings arranged at an angle to each other and provided with air-ports, said fittings adapting the burner to be connected to the handle, means for controlling the feed of fuel from the handle to the burner, and an adjustable cap applicable to either of said fittings, substantially as described.

2. Inavapor-burningappliance ofthecharacter set forth, the combination with a handle forming a hydrocarbon-reservoir, of a burner comprising a body portion having fittings arranged at an angle to each other and provided with air-ports, said fittings adapting the burner to be connected to the handle, means for controlling the feed of fuel from the handle to the burner, a cap applicable to either of said fittings, and a resin-reservoir adapted to be connected to the burner, substantially as and for the purpose described.

3. In a vapor-burning appliance of the character set forth, the combination of a handle forming a reservoir, said handle being provided with a socket and a valve-controlled feed-passage, a burner comprisinga body por- .tion having fittings arranged at an angle to each other and provided with air-ports, said fittings adapted for connection with said socket, and a cap applicable to either fitting, substantially as set forth.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

CHARLES J. THORNGREN.

Vitnesses:

J oHN WALSH, J AMES T. MESKILL.

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